Flue-thimble



(No Model.)

FLUE4 THIMBLB.r N0."503,818. Patented Aug. 22, 1893.

'y mayb/6" J5 f4 c. Jwwwm UNITED STATES PATENT OFFICE.

.I AMES H. WATT, OF BARNESVILLE, OHIO.

FLU E-THIMBLE.

SPECIFICATION forming part 0f Letters Patent No. 503,818, dated August22, 1893.

Application filed February 27, 1893. Serial No. 463.868. (No model.)

To a/Z'Z whom 'it may concern:

Be it known that I, JAMES Il. WATT, of Barnesville, in the county ofBelmont and State of Ohio, have invented certain new and usefulImprovements in Flue-Thimbles; and I do hereby declare that thefollowing is afull, clear, and exact description thereof, referencebeing had to the accompanying drawings, and to the letters and figuresof reference marked thereon, which form part of this specification.

This invention is an improved ue thimble for use in buildings, where itis desired to convey stove-pipes, or hot air pipes, through the oors,and it is an improvement upon the iiue thimble for which I madeapplication for Letters Patent, Serial No. 454,707, dated December 10,1892.

The object of this invention is to provide means for adjusting thethimble to a greater variety of thicknesses of joists, or of Iioorings,and to cheapen the construction of my aforesaid thimble, and at the sametime improve it, and provide for a thorough circulation of air aroundthe central collar thereby very materially lessening the danger ofaccidentalV fires; and the present invention consists essentially in thenovel construction of the adj ustable two part cylinder or sleeve whichsurrounds the collar, and in the combination thereof with other parts,as will be hereinafter clearly described and claimed.

In the drawings:-Figure 1 represents a central vertical sectional viewthrough the thirnble as applied to a flooring, and as a iiue base. Fig.2 is a bottom plan View thereof, and Fig. 3 is a side view of the same,the cylinder being adjusted to suit a thicker joist or flooring. Figs.et and 5 are details.

Referring to the drawings by letters and figguresz-A represents the topplate, having a central opening, for the passage of the smokepipe (notshown) surrounding which opening is a depending collar ct, that shouldbe as long as the thickest j oist or oorin g with which the thimble canbe used.

B designates the bottom plate, preferably annular, and fitting looselyon the collar a, as indicated in the drawings. This plate is adjustaloly secured to plate A by means of through-bolts C, and nuts c, asindicated in the drawings or in other suitable manner, so

that when plate A is supported upon adjoin-n 'any sheet metal, as tin,or cast, or otherwise produced, as desired. Part d has a set ofequidistant pins or studs d', attached to it, near its lower edge andprojecting radially as shown, by which it is supported on the part D.The upper edge of part D,hasastepped series of vertical slots 1, 2, 3,4, 5, eine., in it, each successively deeper or longer than thepreceding, there being a set ot such slots for and co-incident with eachpin d. As shown in Fig. 1 pins d are in notches 3, and the cylinder ispartly extended; by lifting cylinder d and turning it so as to bringpins d over deeper notches, the cylinder can be shortened, and byturning part d, so as to bring the pins over shallow notches, thecylinder can be shortened. By this means the length of the cylinder canbe readily and quickly adjusted to suit the varying widths of joists, onwhich the thimble is suspended, or varying thicknesses of partitions,floorings, &c.

The cylinder sections may be perforated as indicated at d3, if desired,so that air can circulate freely between the cylinder and collar, andthus keepdown the temperature of both. I also propose to perforate thebottom plate B, as indicated at b3, and if desired the top plate, asindicated at a3, so that air can circulate upwardly between the collarand cylinder, as well as laterally around the same.

Instead of the successive series of slots, a stepped-slot, `as indicatedin Fig. 4;, or a notched-slot as indicated in Fig. 5, may be used, whichwill allow ready adjustment of the length of the cylinder, and WillAalso lock the parts of the same against rotary movements in relation toeach other, the essential feature of my present invention being atelescoping two part cylinder, the sections of which can be immediatelyadjusted, to the desired length, and locked when adjusted; saidcylinder-being confined in -position 'between the top and bottomplates.. The series of slots provide for lateralventilation however.`

ing advantages over the thimble shown in my application aforesaid, as inthat case the cylinder when the plates are farthestaparQ-'stands'jconslderably above the bottom plate; whereas in the present form, thecylinder alwayscan lay directly on the bottom; plate, and is morefvr uover adapted to a much greater variety of thlcknesses of florings,'&c.lAgain castingV or securing the stepped lugs on the bottom plate, as inmy'ii'rstapplication,increased the expenseof manufacture, and the weightof:

the-parts, fsuch lugs being dispensed with` in the; present case.

USmalllugs b2 maybe cast on the fbottom plate, 1 if' desired to' centerthe cylinder.

Having thus described my.invention,"what I claim asnew, and desire tosecure by-Letters `Patent thereon, is-

,-1. fIn: a* fluef'thimblezthecoxnbinationf'ofthe topplate, the "collar,the 1 bottom "plate fitted loosely on the :collanand the devicesfor'sus- `pendingthe bottom plate vvon the 'topfplatey 'with'theadjustable cylinder supported 'solely 'onf the-:bottom plateandsurroun'ding" the 'colf lar and also confined between theplates,'fsaidy y cylinder being formed of an'upperand lower-f` ,part adju'stably` connected together, substan- *tiallyas described.

, andpdepending therefrom, the bottom plate, The presentinventionpossessesthe follow-l the uniting bolts, and the sectional andadj ustable cylinder surrounding the collar conned between the platesand supported on :the-lower plate formed of two perforated eyv`andsuspended'fromthe 4top plateanditheicylinder kinterposed'between'saidplates formed in two: relatively adjustable, `cylindrical partstelescopin g together, .onei partfhaving -afseries my ownI affixrrnysi'gnature'inlpresence of two witnesses.

JAMES 'H. 'WATT Witnesses:

5S. BRAsHEAR's,

E. B. JONES.

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